Practice squad LB Bruce Davis signed by the Raiders

The Raiders signed linebacker Bruce Davis off the 49ers’ practice squad and released defensive lineman Jay Alford. Davis is the son of former Raiders tackle Bruce Davis, who also attended UCLA and played with the Raiders from 1979-87.

Oakland has depth issues at linebacker with Quentin Groves (hamstring) and Thomas Howard (knee) getting hurt Sunday against Houston. Backup Ricky Brown was already out Sunday with a hamstring pull. The 6-foot-3, 252-pound Davis was a third-round draft pick by the Steelers in 2008. He has also spent time with New England and Denver.